| 摘要 |
Tetraaryldiphosphines of the general formula (R<1>)2P-R-P(R<1>)2, wherein R<1> represents an aryl group carrying at least one alkoxy substituent in a position ortho in respect to the phosphorus atom to which the aryl group is bound and R is a bivalent bridging group containing at least two carbon atoms in the bridge, are prepared by contacting hexaaryldiphosphonium compounds in the presence of an aprotic diluent with an alkali metal aluminium tetrahydride or with a compound derivable therefrom by replacing one, two or three hydrogen atoms with the same or different groups -OR<2>, wherein R<2> is an alkyl or alkoxyalkyl group.
|
